Global Patent Index - EP 1679546 A1

EP 1679546 A1 20060712 - Focus control method and focus control apparatus

Title (en)

Focus control method and focus control apparatus

Title (de)

Schärfekontrolle Verfahren und Vorrichtung

Title (fr)

Procédé et appareil de mise au point

Publication

EP 1679546 A1 20060712 (EN)

Application

EP 06100107 A 20060105

Priority

JP 2005003070 A 20050107

Abstract (en)

In a focus control method of acquiring focus information a plurality of times while moving a focus lens (3), and determining an in-focus position on the basis of the acquired focus information, whether the focus lens (3) is to be moved toward the infinite end or the closest end is determined on the basis of a focus lens position, the focus information is acquired while moving the focus lens in the decided direction, the focus lens (3) is stopped by the control unit (15) on the basis of the acquired focus information, and the focus lens (3) is started by the control unit (15) from the stop position in a reverse direction.

IPC 8 full level

G02B 7/10 (2006.01); G02B 7/28 (2006.01); G02B 7/36 (2006.01); G03B 13/36 (2006.01); H04N 5/232 (2006.01); H04N 101/00 (2006.01)

CPC (source: EP KR US)

G02B 7/102 (2013.01 - EP KR US); G02B 7/365 (2013.01 - EP KR US); G03B 3/10 (2013.01 - KR); G03B 13/36 (2013.01 - EP KR US); H04N 23/673 (2023.01 - EP US); H04N 23/959 (2023.01 - KR); G03B 2205/0053 (2013.01 - KR)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1679546 A1 20060712; EP 1679546 B1 20141224; CN 100397132 C 20080625; CN 1800900 A 20060712; JP 2006215546 A 20060817; JP 4684896 B2 20110518; KR 100829469 B1 20080516; KR 20060081364 A 20060712; US 2006152617 A1 20060713; US 7626631 B2 20091201

DOCDB simple family (application)

EP 06100107 A 20060105; CN 200610005717 A 20060106; JP 2006003086 A 20060110; KR 20060001689 A 20060106; US 32681406 A 20060106